(PDF) TLC5903 Datasheet PDF | etcTI





TLC5903 Datasheet PDF

Part Number TLC5903
Description LED DRIVER
Manufacture etcTI
Total Page 23 Pages
PDF Download Download TLC5903 Datasheet PDF

Features: Datasheet pdf TLC5903 LED DRIVER D 80 mA x 16 Bits an d 120 mA x 8 Bits Drive Capability and Output Counts D 5 mA to 80 mA/10 mA to 120 mA Constant Current Output Range D Constant Currency Accuracy of ±4% (Max imum Error Between Bits) D Constant Cur rent Output Terminals – 0.4 V (Output Current 0 to 40 mA) – 0.7 V (Output Current 40 to 80 mA) D 256 Gray Scale D isplay With Pulse Width Control 256 Ste ps D Brightness Adjustment – Output C urrent Adjustment for 32 Steps (Adjustm ent for Brightness Deviation Between LE Ds) – 8 Steps Brightness Control by 8 Times Speed Gray Scale Control Clock ( Brightness Adjustment for Panel) SLLS3 83 – DECEMBER 1999 D Protection – W DT Function – TSD Function D Clock Sy nchronized 8-Bit Parallel Input D Anode Common LED Type Applied D CMOS Input S ignal Level (Schmitt-Triggered Input fo r All Input Terminals) D 4.5 V to 5.5 V Power Supply Voltage D 15 V Maximum Ou tput Voltage D 15 MHz Maximum Data Tran sfer Rate D 8 MHz Maximum Gray Scale Clock Frequency D –20°C to 85°C Operating.

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TLC5903 datasheet
TLC5903
LED DRIVER
D 80 mA x 16 Bits and 120 mA x 8 Bits
Drive Capability and Output Counts
D 5 mA to 80 mA/10 mA to 120 mA Constant
Current Output Range
D Constant Currency Accuracy of ±4%
(Maximum Error Between Bits)
D Constant Current Output Terminals
– 0.4 V (Output Current 0 to 40 mA)
– 0.7 V (Output Current 40 to 80 mA)
D 256 Gray Scale Display With Pulse Width
Control 256 Steps
D Brightness Adjustment
– Output Current Adjustment for 32 Steps
(Adjustment for Brightness Deviation
Between LEDs)
– 8 Steps Brightness Control by 8 Times
Speed Gray Scale Control Clock
(Brightness Adjustment for Panel)
SLLS383 – DECEMBER 1999
D Protection
– WDT Function
– TSD Function
D Clock Synchronized 8-Bit Parallel Input
D Anode Common LED Type Applied
D CMOS Input Signal Level
(Schmitt-Triggered Input for All Input
Terminals)
D 4.5 V to 5.5 V Power Supply Voltage
D 15 V Maximum Output Voltage
D 15 MHz Maximum Data Transfer Rate
D 8 MHz Maximum Gray Scale Clock
Frequency
D –20°C to 85°C Operating Free-Air
Temperature Range
D 100-Pin HTQFP Package
(PD = 4.7 W, TA = 25°C)
description
The TLC5903 is a constant current driver that incorporates shift register, data latch, and constant current
circuitry with an adjustable current value and a 256 gray scale display that uses pulse width control. The output
current can be selected at a maximum of 80 mA with 16 bits or 120 mA with 8 bits. The current value of the
constant current output is set by one external register. After this device is mounted on a printed-circuit board
(PCB), the brightness deviation between LEDs (ICs) can be adjusted by using an external data input. The
brightness control for the panel can be adjusted using the brightness adjustment circuitry. Moreover, the device
incorporates watchdog timer (WDT) circuitry, which turns the constant current output off when the scan signal
is stopped during the dynamic scanning operation, and thermal shutdown (TSD) circuitry, which turns the
constant current output off when the junction temperature exceeds the limit.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 1999, Texas Instruments Incorporated
1

TLC5903 datasheet
TLC5903
LED DRIVER
SLLS383 – DECEMBER 1999
DIN4
DIN5
DIN6
DIN7
TS_ENA
VCCLOG
NC
MODE
GNDLOG
BC_ENA
NC
OUT0
TEST1
NC
GNDLED
NC
NC
OUT1
OUT2
NC
GNDLED
NC
NC
NC
OUT3
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
HTQFP PACKAGE
(TOP VIEW)
50 NC
49 DOUT5
48 DOUT6
47 DOUT7
46 NC
45 VCCANA
44 NC
43 GNDANA
42 WD_CAP
41 PVCC
40 IREF
39 OUT15
38 TEST2
37 NC
36 GNDLED
35 NC
34 NC
33 OUT14
32 OUT13
31 NC
30 NC
29 GNDLED
28 NC
27 NC
26 OUT12
2 POST OFFICE BOX 655303 DALLAS, TEXAS 75265




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